Load json data based on datepicker date

I have a json file with columned data per date (over 2500 dates)

Name | date 1 | date 2 | date 3
Value | value | value | value
Value | value | value | value
Value | value | value | value

I want to select a date from datepicker and load the first 3 columns from my json file and the column of the selected date.

I have been searching on how to do this but no luck yet.

Any ideas?
Thank you